Transmission-gear.



' PATENTED JULY 24, 1906.

A A. F. MACK.

TRANSMISSION GEAR.

2 SHEETS-SHEET l.

APPLIGATA'DN FILED 1'm.17.19o5.

s UNiTED STATES 'PATENT critics.

` AUGUSTUS FREDERICK MACK, OF BROOKLYN, NEW YORK.

TRANSMlSSION-GEAR.

Patented July 24, 1906.

Application tiled February 17.1905. Serial No. 245,991. i

.usc the-saine, reference being had to tho ac-r conipanying drawings, forming part of this specification. z.

Thcfohjcct of my invention is to providc :i variablc-si-iecd transmission in which thc usc .of vslidingV g'cars is avoidcd and the. burring',

stripping, .and unduc noisc attcndinir such use 'eliminated and, further, to producc` a transmission Imechanism which can hc readily conncctcd and disconncctcd from motor and Athat at .the sanic tinicis certain in action,

convenient in `operation, and compact and` 4To this-end I mount v strong in construction. upon a transmission-shaft.carrying pinion a'islcovc or outer hollow shaft rotatable thorof on and also carrying a pinion, both shafts bcing i adapted 'to -hc alternately thrown in clutch with thcI driving-shaft of the motor, thc pinions onthc two shafts being further arranged to nicsh, respectively, with pinion i. and gcar-wliccl on another shaft` .parallel thcrci'vith, so that power can cithcr bc inipfartod direct from tfhc driving-shaft to the transmission-sliaft, or for lower spccd tht` traiisinission-shaft can bc opcra-tod by the pinion on theI parallcl shaft as the lattcr sha ft is rotatcdh;vr its gcar-whccl nicshingr with thc pinion onithc hollow shaft niadc l,to rcvolvo by boingl brought iiicliitcli in turn with thc driving-shaft. Foi' rciici'siny; l arranpgc :in

vintcrrncdiatc shaft carrying pinions, ono of which nicshcs with tho pinion on tho outcr holloiusliaft and 'thc otlicr with a sccond gcar-whccl monntcd on thc parallcl shaft.

'tI :acconiphsh th"` icsults. in thc niannor and :'by thc means to be. now described li)AT reforcnc lto thc accoinininying drawings. which illustrato` one form and cnibodinicnt of thc several features of niyinrent-ion, and in which- FigureA l isa sido clcvation of :i transmission .mechanism cniliodying my invention. Fig. 2 is a- View-in cross-section on thc linc XLXJPigl. Fig. 3 is aviow, `in vcrti al longitudina-lV section of. thc transmission mechanisini, but with the .rola-tivo position clia-ngcd of certain of the movable parts. Figs. 4 and 5 arc detailed sectional views showing thc parts comprising frit'ition-clutch in different positions. Fig. 6 is :i View in cross-section with portions brokcn away .on the. line Y Y, Fig. 3. Fig'. 7 is a detailcd vicw of auxiliaryshaft and piiiions thereon. Fifth is a view in cle.-

'ation of gcar-whccl, Vshowing the projections which iiitcrlock with thc sliding clutch.

ln thc drawings, 1 rcprcscnts an engine. or motor shaft upon which is mounted apower or ily wliecl 2, provided with a conical flange 3, the faccs of which furnish frictiiin-surfaces for thc rims of thc inncr and outer disks or whccls 4 and 5. Tho `inncr disk 4- is fitted upon a transiiiission-shiift (i, wliilc thc outer disk 5 is sccurcd to a surrounding slccvc or hollow shaft 7. Upon theV outcr vcnd of thc shaft 6 isshown a bevel-pinion 8, iiicsliiirgr with bevel-gear 9, to drivey a transverse shaft 1t). Roller-bearings11 11 and ball-bearings l l2 permit thc slcovo or hollow shaft/7 to rotate froci); about thc shaft 6, whilc rclativc motion lcngthwisc `is prcvcntcd by thc collars 13 13, and thc two shafts havtx ay uniform longitudinal movcniciitv :is thc transmissionshaft is drawn backward or forward in its bearings 14 and 15.

Suitably supportcd in bearings 1G 16 is a parallel or couiitcr shaft 17, at' onel end of` which is a fixed pinion 1S, which incslics with the fixed pinion 1Q on the shaft 6.` Upon the shaft 17 and mountcd so that it may rotate thereon is a gcar-wliecl 2t), n'ieshing with a fixed pinion 21 on thc hollow shaft orrslccvc T. rlhe shaft 17 furthcr carries a goar-whccl '22, which also may frccly rotate thcreon, and bctwecn thc gear-whccls 2t) and 22 is a sliding clutch 23,'providcd with tccth or projections 24 24,adaptcd to be projected into thc intcrsticcs or spaccs bctwccn tho tooth 2F 25' on thc adjacent sides of thc gear-whccls. Tho clutch 23, mounted on thc squaro or roctangulai portion of tho shaft 17, with which it rotates, is nioi'cd back and forth by thc lcvcr 26 through tlic- Vokc 27 to engage cithcr gear-wheel, as describcd. Antifriction-bcarings 28 28 arc shown as intcrposcd to take the thrust against thc coilars 29 29.

Botwccn thc transniission-shaft 6 and the coi1ntcr-shal't 17 is conicnicntly mounted in suitable. bearings an auxiliary or intermediate shaft 30, on ono cud of which is a fixed pinion 31, which meshes with the gear-wheel 22, and :it thc othcr ond a pinion 32, which is ni nicsh with thc pinion 2l on tho hollow i and pinion 32.

shaft or sleeve 7, to which it is secured, and to keep in mesh the full faces of thel gear-wheel When the operating -lever 38, connected by yoke 34. to the hollovl shaft 7, is putin the position shown in Fig.'y l, the transmission-shaft 6, being at the Sametime brought forward in its bearings, the frictional surface of the outer disk 5, carried'on the shaft or sleeve 7,

V.is held a ainst the outer surface of the conical flange o the {1y-wheel. vThe sleeve or hollow shaft 7, thus brought in frictional clutch with the engine or motor, is revolved upon its bearings vv ith its pinion 21. This imon, meshing with the gear-wheel 20, hel from inde endent rotation by the clutch 23, turns the s raft 17 and the pinion 18, mounted upon it. The inion 18, meshing with pinion 19, rotates t e bevel-pinion 8 and bevelgear 9 and imparts power to the transverse shaft 10. The machine is now started at slow speed.

After the machine has been set in motion and increased speed is desired the lever 33 is thrown back into the farthest position indicated by the dotted lines in Fig. 1. f By this movement of the lever the shaft' is=f orced backward in its bearings, the outer disk 5 drawn away, and the inner disk 4, mounted on the transmission-shaft 6, thrown in clutch with the fly-wheel. Power is then directly transmitted through shaft 6 by bevel-pinion 8 und bevel-gear 9 to the transverse shaft 10. Vhcn the machine is running at full speed on the direct drive, the lever 26 may be put in position shown in Fig. 1. The clutch 23 then becomes disenga ed on both sides and the gear-wheels 2O an 22 will run free, or the clutch ma remain in engagement with the ear-whee 20, as s hown in Fig. 3, and the ollow shaft 7 retained in rotation. When but two speeds are provided for and no provision made for reversing, the gearswheel 2() 'may be rigidly secured to its shaft and the sliding clutch dispensed with.

To reverse, the slidimr clutch 23 is thrown into engagement with the fear-wheel 22 and the outer disk 5 brought 1n clutch with the iiy-wheel, thereby rotating the hollow shaft 7 with its fixed pinion 21. The pinion 2l, meshing with thel pinion 32, will rotate in the opposite direction the auxiliary shaftBO, carrylng pinion 31. The pinion 31, 'meshing with thc gear-wheel 22, held from indcpendent rotation by the clutch 23, willimpart to the shaft 17 a movement in the same direction as Ithat of the ily-whcel of the engine. Then the pinion 12%, which is secured to the shaft 17, meshing with the pinion 19 on thc lshaft 6, will turn the latter baclnvard, and

through the hevelepinion 8 and bevel-gear 9 a reverse movement is imparted to the transverse shaft 10. Ey bringing the lever 33 te cadres an intermediate ler perpendicular position disks 4 and 5 may both` be held from contact with the flangey of the fly-wheel, in which position the entire transmission' mechanism is out of clutch and the engine 'runs'free ttention is called to the fact that the cartrains, which transmit motion from the riving-pinion 21, are non-slidably supported and that means are provided for transmittin motion from said pinion to either of sai gear-trains at will. Thus when the clutch 23 is thrown into engagement with the gear 20 the rotary motion of the driving-pinion 21 isv transmitted through the gear 20, ear 18, gear 19, and ibevelears 8 9 to the s aft 10. On the other han when the clutchv 23 is moved intov engagement with the gear 22, motion is then transmitted from the pinion 21 to the gear 32, gear 31, pinion 22', and so as before from gear 18 to shaft 10. it will also be apparent that the construction of the last-named gear-train is such as to transmit the motion of the pinion 21 at a different rate of speed from that of the first-named gear-train. I

In'another application for Letters Patent,

Serial No. 265,161, filed June'14, 1905, I have claimed the combination, in a friction-clutch mechanism, of a driving member, a support therefor, two driven members dis osed respectively on opposite sides'of sai driving member, means forI supporting said driven members independently of said driving-member support, and means for moving either o f said driven members into engagement with said driving member, together with the spe` cific'yp, nstructon of the clutch mechanism here/iti describ' d.

What I claim', and desire tosecure by Let,- ters Patent, is

1. In a transmission-gear, the combination with a motor-shaft and a wheel mounted thereon provided with conical frictional Surfaces, of a transmission-shaft, a disk on the transmission-shaft provided with a conical frictional surface, a hollow shaft or sleeve rotatively mounted on said transmission-shaft, a disk on the hollow shaft provided with a conical frictioual surface and having its rim surrounding the rim of the disk on said transmission-shaft, and means for bringing the frictional surfaces yof the disks of the transmission and hollow shafts alternately in contact with the frictional surfaces of the motorwheel. .l

2. In a transmission-gear, the combination with a motoreshaft and a wheel mounted thereon provided with conical frictionalsur.

IOO

IIO

Iig

faces, of a traneniission-shaft, a disk on Vthe ment thereon and a' lisk thereouh'aving a conical frictional surface and having its rim mission-shaft, means for reciprocating the transmission-shaft in its bearings and bringing the frictional surfaces of the disks ofthe transmission and hollow shafts alternately in contact with the frictional surfaces of the motor-wheel, a driven member and means for transmitting power from said hollow shaft to said driven member.

3. In a transmission-gear, the combination with a motor-shaft, of a transmissionshaft, a pinion thereon, a hollowy shaft rotavtively mounted on said transmission-shaft, a pinion on said hollow shaft, means for alternately clutching the transmission-shaft and hollow shaft with the motor-shaft, a parallel shaft, a pinion thereon meshing with the pinionon the hollow shaft, a gear-wheel mounted'on the parallel shaft, an auxiliary shaft, and pinions on said auxiliary shaft meshing respectively with the gear-wheel on parallel shaft and pinion on hollow shaft.

4. In a transmission-gear, the combination with a motor-sliaft a wheel mounted thereon provided with a conical flange, of a transmission-shaft, a disk'on said transmission-shaftu provided with a conical ange or rim, a hollow shaft rotatively mounted on said transmission-shaft and secured from independent longitudinal movement thereon, and a disl; thereon having a conical flange, means for reciprocating the transmissionshaft in its bearings and alternately bringing the inner surface of the flange on the hollow shaft in contactwith the outer surface of the flange of the wheel of the motor and the outer surface ofthe rim of the wheelon the transmission-shaft with the inner surface of the flange on the motor-wheel and in turn holding the frictioiial surfaces of both disks free from the inotorvheel.

'5. In a transmission-gear,- the combination with a inotor-shaft, of a transmissionshaft, a pinion thereon, a hollow shaft oi' sleeve rotatively mounted on said transmission-shaft and a pinion thereon, means for alternately clutching the traiisinission-sliaft and hollow shaft with the motor-shaft, a parallel shaft, a pinion on the parallel shaft meshing with pinion on the hollow shaft, gearwheels rotatably mounted on said parallel shaft and an intervening sliding clutch to i hold either wheel from rotation, an interniediate shaft, pinions on said intermediate shaft meshing respectively with a gear-wheel on the parallel shaft and pinion en the hollow 6. A driving-shaft, a separately-supported driven member, transmission-gearing interposed between said shaft and member comprising clutches between said gearing and said drivine-shaft for varying` the speed of transmitted motion, and a clutch for reversing the direction of transixiitted motion.

7. A rotary shaft, a sleeve thereon, means for rotatin said shaft or said sleeve, a separately supported driven member operatively connected to said shaft and means for transmitting to said driven member motion from said sleeve independently of said shaft.

8. A rotary shaft, a sleeve thereon, means forrotating said shaft or said sleeve, a separately-siipported driven member opera-' tively connected to said shaft, means for transmitting` tosaid driven ineinberniotion from said sleeve independently of said shaft and means foi' reversing the motion transmitted freni said sleeve. o i

9. A rotary shaft, a sleeve thereon, means for rotating said shaft or said sleeve, a separately-supported drivenmember operatively connected to said shaft, and means. for transmittting motion at a` relatively lower speed from said sleeve to said i'neiiiber independently of said shaft. s

10. An axially-movable rotary shaft, a sleeve thereon, means for rotating said shaft or said sleeve, -a separately-siipporfed rotary driven member operatively connected to said shaft, whereby rotary motion only is transmitted from said shaft to said member, and means for transmitting rotary motion from said sleeve to said driven member independently of said shaft.

11. A rotary shaft, a sleeve thereon, means for rotating said shaft or said sleeve, a separately-supported rotary driven member operatively connected to said-shaft, transmission-gearing interposed between said sleeve and said driven member and comprising a clutch mechanism for reversing the direction of motion transmitted thereby.

12. ln combination with a driving-shaft, a loose sleeve thereon, means for rotating said shaft or said sleeve, and a separately-suiported rotary driven member operatively connected to said shaft, motion-ti ansniitting" gearing constantly in mesh interposed between and engaging directly with said driven member and with said eeve, comprising means for interrupting at will the transmission of motion by said gearing.

13. In combination with a driving-shaft, a loose sleeve thereon, means for rotating said shaft or said sleeve, and a separatelysupported rotary driven meiiihor operatively connected to said shaft, motion transmitting-gearing constantly in mesh interposed between and engaging directly with said driven member and said sleeve comprising means for reversing the direction of niotion transmitted by said gearing.

14. ln combination with a driving-shaft, a loose sleeve thereon, means for rotating said shaft or said sleeve, and a separately-einliported rotary driven member operativey connected to said shaft, toothed gears respectively on said sleeve and on said driven member and intermediate toothed gears; said gears having their teeth constantly in IOO engagement and one ofv Said intermediate gears being loose on its Shaft; `sind o @hitch for connecting seid loose gear 4to said shaft. 15. The combination ofe driven member,

a transmission-shaft having one end. slidaoly connected thereto, -a sleeve non-slidebly sup-- )orted on said transmissiomsheft, gearing etween said sleeve amd said memberI a drive ing. member, and means 'for moving said sleeve and said transmission-Shaft jointly toy bring one or the other at will into operative oonneotionwith 'sind driving member.

16. The Combination of n driven member, a, trnnsn'iission-slmft having one end slidably connected thereto, 'f1-sleeve non-sli lnb1y sup orted -on Said transmissiomehafn learring etween Seid sleeve and said me1nher,\com prifsing means f'or reversing the motion imparted lthrough seid gemingl'rom seid sleeve to said member7 a driving member, 'and means for moving enidsleevo and said transf mission-shaft jointly to bring one or the other at will into operativeeonneotion with said drivingr member. l

17. In a 'trun'smissiomgemg the combinetion with n motorshaft,of a sepznsvte transmission-shaft having its lexis in prolongation of the axis of said motor-shaft, n hollow shaft rotatably mounted on said transmissionn shaft, and secured from independent longil Uudinal movement thereon, e clutch mechan- 1srn, and means for reciproca/ting the trans mlssiomshap in its bearings und thereby-lolternnte'ly lbrlnfing hollow shaft and `the transmission-s left m clutch with ther-motel shaft.

In testimony whereof Il. have hereunto eet 'my bend n the presence of the two'sbsoribmg wi-l'nesses.

AUGUSTUS FREDERICK 'MCL (ff. J. Hnnmmxon, A. M. HAYES. 

